Add script that checks installed plugin version
Remove old plugin file and directory before installing new plugin version
Fix delete bug
Add check for presence of plugin manifest
Merge branch 'master' into plugin-versions
Use new facter-based method of detecting installed plugin versions based on approach suggested by jlambert121
Remove unused script
Remove unused variable
Update test cases
Merge pull request #53 from jchristi/plugin-versions

Allow specific versions of jenkins plugins to be installed
fix rm: command not found
Merge pull request #67 from mihai-rotaru/fix-rm-command-not-found

Fix rm: command not found
Merge pull request #2 from handy-serge/master

SS-612 Pulled some updates from upstream.
debian compatibility and variable use

This patch fixes the use of `/etc/init.d/functions` which seems to be not standard across linux distributions. Furthermore the template now uses the global variables instead of the local ones / some functions.
formatting
fallback to hostname
Merge pull request #3 from handy-serge/handyem

SS-612 Rebased our changes to updated master